Finding the Third Proportional to 92,206 and 139,156

Step by Step Solution

1. Step 1: Write the proportion equation
   92,206 : 139,156 = 139,156 : x
2. Step 2: Convert to fraction form
   92,206/139,156 = 139,156/x
3. Step 3: Cross multiply
   92,206x = 139,156 × 139,156
4. Step 4: Simplify right side
   92,206x = 19,364,392,336
5. Step 5: Solve for x
   x = 19,364,392,336/92,206
6. Step 6: Final answer
   x = 210,012.28